JPH0272416U - - Google Patents
Info
- Publication number
- JPH0272416U JPH0272416U JP15055688U JP15055688U JPH0272416U JP H0272416 U JPH0272416 U JP H0272416U JP 15055688 U JP15055688 U JP 15055688U JP 15055688 U JP15055688 U JP 15055688U JP H0272416 U JPH0272416 U JP H0272416U
- Authority
- JP
- Japan
- Prior art keywords
- glass substrate
- edge
- holder
- light beam
- supporting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011521 glass Substances 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 2
- 239000010409 thin film Substances 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims 5
- 238000000151 deposition Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案に係るナイフエツジの一実施例
を示す要部構成図、第２図は従来のナイフエツジ
の一例を示す図である。
１……ガラス基板、２……金属薄膜のエツジパ
ターン、３……ホルダー。
FIG. 1 is a diagram showing the main parts of an embodiment of a knife edge according to the present invention, and FIG. 2 is a diagram showing an example of a conventional knife edge. 1...Glass substrate, 2...Edge pattern of metal thin film, 3...Holder.
Claims (1)
ナイフエツジであつて、 金属薄膜のエツジパターンをそのエツジ部分が
入射光ビームの光軸と接するような位置に蒸着し
てなるガラス基板と、 このガラス基板を支持するホルダー よりなり、前記エツジパターン部で反射された
光ビームが入射方向に戻らないように前記ガラス
基板を光軸に対して傾けて取り付けてなる光学ヘ
ツドのナイフエツジ。[Scope of Claim for Utility Model Registration] A glass substrate that is a knife edge in an optical head used in an optical disk device and is formed by depositing a metal thin film edge pattern at a position where the edge portion contacts the optical axis of an incident light beam. and a holder for supporting the glass substrate, the knife edge of an optical head comprising: a holder for supporting the glass substrate; and the glass substrate is mounted with the glass substrate tilted with respect to the optical axis so that the light beam reflected by the edge pattern portion does not return to the incident direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15055688U JPH0272416U (en) | 1988-11-18 | 1988-11-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15055688U JPH0272416U (en) | 1988-11-18 | 1988-11-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0272416U true JPH0272416U (en) | 1990-06-01 |
Family
ID=31423812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15055688U Pending JPH0272416U (en) | 1988-11-18 | 1988-11-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0272416U (en) |
-
1988
- 1988-11-18 JP JP15055688U patent/JPH0272416U/ja active Pending
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